[TYPO3] paypal and webformat extendedshop

[tding at 1688.com]

Dear List,


paypal returns to the basket page after making payments but the purchased item remains in the basket instead of going to the "order complete, print this page" confirmation page like for bank transfer option.

values sent to paypal
https://www.paypal.com/cgi-bin/webscr?cmd=_xclick&upload=1&amount=0.02&item_name=1165903745&item_number=1165903745&on0=1165903745&currency_code=USD&business=xxx@xnaviio.com&return=http://xnaviio.com/index.php?id=98&backPID=98&detail=


I have try different setting on paypal but and sees no differences, are any of these required?

Website Payment Preferences
- Auto payment = on
- URL = http://xnaviio.com/index.php?98&backPID=98&detail=
Instant Payment Notification Preferences
- IPN=on
- IPN URL = http://xnaviio.com/index.php?98&backPID=98&detail=

website TS setup 
plugin.tx_extendedshop_pi1.payment {
  radio = 1
  50.title = PayPal Payment
  50.bankcode = paypal
  50.UICCODE = USD
  50.ShopLogin = xx at xnaviio.com
  50.bankname = PayPal
  50.banklink = www.paypal.com
  50.return = http://xnaviio.com/index.php?98&backPID=98&detail=
  50.paylink = https://www.paypal.com/cgi-bin/webscr?cmd=_xclick&upload=1
}


also i don't see the user login input boxes in the entering personal info page, how do i add this?

anyone else has experience using paypal with extendedshop?

thanks!
Timothy Ding